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55052869 = 233177213
BaseRepresentation
bin1101001000000…
…0101001000101
310211120222100011
43102000221011
5103043142434
65243550221
71235640664
oct322005105
9124528304
1055052869
1129092043
121652b371
13b537281
147450ddb
154c76e64
hex3480a45

55052869 has 8 divisors (see below), whose sum is σ = 59300352. Its totient is φ = 50959920.

The previous prime is 55052867. The next prime is 55052887. The reversal of 55052869 is 96825055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55052869 - 21 = 55052867 is a prime.

It is a super-2 number, since 2×550528692 = 6061636770262322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55052863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37894 + ... + 39319.

It is an arithmetic number, because the mean of its divisors is an integer number (7412544).

Almost surely, 255052869 is an apocalyptic number.

It is an amenable number.

55052869 is a deficient number, since it is larger than the sum of its proper divisors (4247483).

55052869 is a wasteful number, since it uses less digits than its factorization.

55052869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77267.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 55052869 is about 7419.7620581795. The cubic root of 55052869 is about 380.4170605642.

The spelling of 55052869 in words is "fifty-five million, fifty-two thousand, eight hundred sixty-nine".

Divisors: 1 23 31 713 77213 1775899 2393603 55052869